I added the AP as a client with and have tried using both RADIUS Standard and Cisco as the RADIUS type.

I configured the IAS policy to grant access to Domain Computers, Authentication is set to PEAP and uses a private cert issued by our CA, the other profile settings are all default.

linksys wireless adapter validating identity-59

To fix, you go into the properties page of your wireless connection, go to "Wireless Networks" tab and then to Properties of the chosen wireless network you are trying to connect to.

Then go to "authentification" tab and untick the box saying "Enable IEEE802.1x to the availiable network" and that should solve your problem Graham UKRight, Graham's solution worked for me.

This seemed to work for me after I disconnected from my router and reconnected again.

However, you may have to go into "view wireless networks", and then choose "change order of preferred networks" in left corner of screen.

By default, XP will re-authenticate with the user credential after the user logs-on (there is no way to do computer-only with XP, I believe).

I'd start by reviewing the event logs on your IAS server for reasoning as to why it's not authenticating your client.

First, click on the wireless icon in your taskbar and under Related Tasks, choose Change advanced settings.

Now click on the Wireless Networks tab and select the network in the list at the bottom.

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